Method for installing fixed frame on original fixed frame for renovation of original fixed frame, involves fixing internal application face of branch along interior face to form stop for limiting introduction of fixed frame

摘要

The method involves fixing an L-corner section on each of uprights and cross-pieces of a fixed frame (1) for forming installation interfaces (3) between the fixed frame and an original fixed frame (2), where each interface is fixed along an external application face (41) of a branch (4) to an external edge (6). An internal application face (52) of another branch (5) is fixed along an interior face (8) of one of the uprights or cross-pieces of the original fixed frame to form a stop for limiting introduction of the fixed frame inside the original fixed frame. An independent claim is also included for an installation interface for a fixed frame.